On 13-Aug-07, at 9:50 AM, Vivek Khera wrote:
On Aug 10, 2007, at 4:36 PM, Merlin Moncure wrote:
I'm not so sure I agree. They are using LSI firmware now (and so is
everyone else). The servers are well built (highly subjective, I
admit) and configurable. I have had some bad experiences with IBM
gear (adaptec controller though), and white box parts 3ware, etc. I
can tell you that dell got us the storage and the server in record
time
do agree on adaptec however
Ok, perhaps you got luckier... I have two PowerVault 220 rack
mounts with U320 SCSI drives in them. With an LSI 320-2X
controller, it *refuses* to recognize some of the drives (channel 1
on either array). Dell blames LSI, LSI blames dell's backplane.
This is consistent across multiple controllers we tried, and two
different Dell disk arrays. Dropping the SCSI speed to 160 is the
only way to make them work. I tend to believe LSI here.
This is the crux of the argument here. Perc/5 is a dell trademark.
They can ship any hardware they want and call it a Perc/5.
Dave
The Adaptec 2230SLP controller recognizes the arrays fine, but
tends to "drop" devices at inopportune moments. Re-seating dropped
devices starts a rebuild, but the speed is recognized as "1" and
the rebuild takes two lifetimes to complete unless you insert a
reboot of the system in there. Totally unacceptable. Again,
dropping the scsi rate to 160 seems to make it more stable.
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